US5295443A - Arrangement for tilting a railbound vehicle in track curves - Google Patents
Arrangement for tilting a railbound vehicle in track curves Download PDFInfo
- Publication number
- US5295443A US5295443A US07/778,115 US77811591A US5295443A US 5295443 A US5295443 A US 5295443A US 77811591 A US77811591 A US 77811591A US 5295443 A US5295443 A US 5295443A
- Authority
- US
- United States
- Prior art keywords
- bogies
- car body
- vehicle
- cylinders
- lateral acceleration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
Definitions
- the present invention relates to an arrangement for a railbound vehicle with hydraulic cylinders for tilting of the car body in track curves.
- the tilting is usually controlled by two servo functions, one per bogie, each function comprising a servo valve, hydraulic cylinder(s) and some form of mechanical bolster.
- Such multi-function systems involve the risk that the two (or the different) servo functions may start acting against each other via the relatively torsionally rigid car body, which gives diagonal unloading and loading stresses on the wheels of the two bogies. This, in turn, may entail a risk of derailment and this eventuality thus requires an extensive monitoring system. (See further FIG. 1 and the associated text.)
- the invention relates to a solution to the above problems and other problems associated therewith.
- the invention is characterized in that the hydraulic cylinders mutually communicate and that the tilting of the car body is adapted to be controlled by a servo function comprising one servo valve per vehicle.
- a laterally sensing acceleration normally constitutes a control signal to the tilting system.
- the lateral acceleration is measured in the front bogie of the train unit.
- the measured signal is thereafter transmitted to all tilting cars in the train in order to constitute a control signal to the tilting system of the respective car.
- the turning angle is measured with an angular transducer, for example an electromechanical transducer, or, alternatively, with gyro or some other angular sensor.
- an angular transducer for example an electromechanical transducer, or, alternatively, with gyro or some other angular sensor.
- FIG. 1 shows the prior art
- FIG. 2 shows a single-valve device according to the invention
- FIG. 3 shows the tilt ratio for two bogies associated with a vehicle
- FIGS. 4a-e show curves for indication of transition curves
- FIGS. 5-10 depict alternative means for controlling the servo valve in the inventive arrangement for controlling the tilting of a railway vehicle.
- FIG. 1 shows elements of risk in the case of system faults in servo systems for different bogies associated with a vehicle, each one provided with a separate servo valve 11, 12. It is seen here how the torques arisen, M 11 and M 12 , counteract each other, resulting in wheel unload.
- the two left-hand hydraulic cylinders 14a, 14b may be regarded as being the cylinders located at a first bogie of a railway vehicle for tilting the car body when the two cylinders are working in opposite directions, while the two right-hand hydraulic cylinders 15a, 15b may be regarded as the cylinders at a second bogie of the vehicle, also for effecting tilting movements of the car body in the same way.
- the lower working spaces of the left-hand cylinders 14a, 15a of the respective first and second bogies are interconnected, while these lower working spaces are also interconnected to the upper working spaces of the right-hand cylinders 14b, 15b of the respective first and second bogies, these interconnections being symbolized by the conduits connected to point 16a of FIG. 2.
- the lower working spaces of the right-hand cylinders 14b, 15b of the respective first and second bogies are interconnected, while these lower working spaces are also interconnected to the upper working spaces of the left-hand cylinders 14a, 15a of the respective first and second bogies, these interconnections being symbolized by the conduits connected to point 16b of FIG. 2.
- the only existing servo valve 13 controls the tilt of the car body through one connection to 16a and a second connection to 16b, hence when operating the servo valve by pressing a fluid to one of the connections 16a or 16b forcing all said hydraulic cylinders of the two bogies to cooperate in order to tilt the body through a coordinated rotational movement.
- the hydraulic cylinders 14a, 14b and 15a, 15b, respectively, of the two bogies are controlled in parallel.
- the hydraulic cylinders are also arranged to communicate (see the hydraulic connections 16a, 16b).
- 14a and 15a are, for example, interconnected and the pressure difference between them will be rapidly equalized.
- the angular difference that may arise between bogie 1 and bogie 2 in a vehicle is controlled by the geometry of the superelevation.
- the difference in tilting angle between different bogies belonging to a car is adapted to be measured, the measured signal thus indicating transition curves.
- Both the time or space rate of change of the superelevation and the lateral acceleration are adapted to be measured in the vehicle.
- a correlation signal is obtained.
- a positive value indicates a transition curve whereas low or negative values indicate a straight track, a circular track or a track fault. It is desirable to obtain a rapid indication of the lateral acceleration, which deviates as little as possible from the ideal.
- the signals to the different control systems are filtered to eliminate disturbance, noise etc. When a track fault occurs, a deviation from the ideal curve takes place, and the degree of filtering can thereby be adjusted (upwards). This is an example of how to use a correlation signal.
- FIG. 4a shows the acceleration signals, both the ideal and the actual, when entering a transition curve.
- FIG. 4b shows the time rate of change d acc /d t .
- FIG. 4c shows the superelevation (re) and
- FIG. 4d shows the time rate of change thereof, d re /d t . It is also possible to measure its space rate of change, for example by using the abovementioned angular difference ⁇ .
- the ideal and actual correlation signal is shown in FIG. 4e.
- the desired value of the tilting is normally formed taking into account the lateral acceleration according to the above. To avoid a large tilting movement, this is normally limited to a maximum value.
- snow which is packed between the movable parts of the tilting system may prevent the tilting movement, which, in turn, may lead to unfavourable wheel unloads and uncomfortable ride.
- great angular differences, control errors and forces will arise in the servo system.
- One or several of these quantities may be utilized for indicating the presence of snow packing, for indicating the degree of snow packing as well as for minimizing the risk of wheel unload.
- the angular difference is measured according to the above.
- the control error is formed as the difference between the actual value and the desired value whereas the forces may be measured, for example, as the difference in hydraulic pressure across the cylinders.
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Abstract
Description
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8902526 | 1989-07-13 | ||
SE8902526A SE465667B (en) | 1989-07-13 | 1989-07-13 | DEVICE FOR CONTROL OF BASK CLOSING IN BASKETS FOR SPARBUNDED VEHICLES |
PCT/SE1990/000467 WO1991000815A1 (en) | 1989-07-13 | 1990-06-29 | Arrangement for tilting a railbound vehicle in track curves |
Publications (1)
Publication Number | Publication Date |
---|---|
US5295443A true US5295443A (en) | 1994-03-22 |
Family
ID=20376544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/778,115 Expired - Fee Related US5295443A (en) | 1989-07-13 | 1990-06-29 | Arrangement for tilting a railbound vehicle in track curves |
Country Status (10)
Country | Link |
---|---|
US (1) | US5295443A (en) |
EP (1) | EP0532493B1 (en) |
AT (1) | ATE137453T1 (en) |
CA (2) | CA2064058C (en) |
DE (1) | DE69026838T2 (en) |
ES (1) | ES2089019T3 (en) |
FI (2) | FI109672B (en) |
NO (2) | NO174288C (en) |
SE (2) | SE465667B (en) |
WO (2) | WO1991000816A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5558024A (en) * | 1995-04-07 | 1996-09-24 | Fiat Ferroviaria Spa | Body roll control system for a railway vehicle with variable trim body |
US5564342A (en) * | 1995-04-07 | 1996-10-15 | Fiat Ferroviaria Spa | Railway vehicle with variable trim body |
US5636576A (en) * | 1995-11-07 | 1997-06-10 | Construcciones Y Auxiliar De Ferrocarriles, S.A. | Tilting system for railway rolling stock |
US5775230A (en) * | 1994-12-05 | 1998-07-07 | Fiat-Sig Schienenfahrzeuge Ag | Guidance system and process for controlling the lateral inclination on a rail vehicle |
US5784969A (en) * | 1994-07-11 | 1998-07-28 | Siemens Aktiengesellschaft | Process and device for regulating the earth-related inclination of railroad vehicle boxes |
US5787815A (en) * | 1994-05-25 | 1998-08-04 | Asea Brown Boveri Ab | Storage of track data in a position-controlled tilt system |
ES2119644A1 (en) * | 1995-07-05 | 1998-10-01 | Const Y Aux Ferrocarriles Sa | Tilting system for railway vehicle |
US6278914B1 (en) | 1999-08-26 | 2001-08-21 | Bombardier Inc. | Adaptive signal conditioning device for train tilting control systems |
US6397129B1 (en) | 1999-11-01 | 2002-05-28 | Bombardier Inc. | Comfort monitoring system and method for tilting trains |
US20030075071A1 (en) * | 2001-10-23 | 2003-04-24 | Alstom | Safe rail vehicle tilt control method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2632260B1 (en) * | 1988-06-03 | 1990-08-31 | Durand Charles | METHOD AND SYSTEM FOR DAMPING OSCILLATORY MOVEMENTS OF RAIL VEHICLES |
DE19512817A1 (en) * | 1995-04-05 | 1996-10-10 | Siemens Ag | Method and device for controlling the inclination of at least one car body |
DE19653529C1 (en) * | 1996-12-20 | 1998-02-12 | Siemens Ag | Method of regulating rail vehicle carriage tilt w.r.t. ground |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2129716A1 (en) * | 1970-06-16 | 1971-12-23 | British Railways Board | Device for rail vehicles for lateral tilting of the car body of rail vehicles |
DE2135633A1 (en) * | 1971-07-16 | 1973-02-01 | Mak Maschinenbau Gmbh | STABILIZATION DEVICE TO PREVENT ROLLING MOVEMENT AND DAMPING NICKING MOVEMENT, IN PARTICULAR OF RAIL VEHICLES |
US3854420A (en) * | 1972-07-07 | 1974-12-17 | Schweizerische Lokomotiv | Cross-coupling for the trucks of a railroad vehicle |
US3902691A (en) * | 1973-11-27 | 1975-09-02 | Owen J Ott | Automatic vehicle suspension system |
US4069767A (en) * | 1972-11-08 | 1978-01-24 | Lucas Aerospace | Pneumatically controlled hydromechanical railway car stabilizing apparatus |
US4113111A (en) * | 1975-04-25 | 1978-09-12 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. | Load handling vehicle with hydraulic torsion transmitting devices |
US4324187A (en) * | 1978-09-04 | 1982-04-13 | Schweizerische Lokomotiv-Und Maschinenfabrik | Rail vehicle having a roll support device |
US4363277A (en) * | 1980-05-13 | 1982-12-14 | Dofasco Inc. | Stabilizing high speed railway truck safety device |
US4440093A (en) * | 1980-06-23 | 1984-04-03 | Hitachi, Ltd. | Vehicle tilt control apparatus |
US4665835A (en) * | 1984-03-01 | 1987-05-19 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Arrangement to increase roll stability of rail vehicles with air suspension |
US4715289A (en) * | 1985-05-31 | 1987-12-29 | Japan National Railway | Apparatus for controlling vibration of vehicle |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2095677A (en) * | 1935-04-03 | 1937-10-12 | Cincinnati Traction Bldg Compa | Railway car |
US2161687A (en) * | 1937-03-05 | 1939-06-06 | Cincinnati Traction Building C | Apparatus for maintaining adjacent railway cars on a level plane |
US3719152A (en) * | 1969-06-12 | 1973-03-06 | Thrall Car Mfg Co | Railroad car with fluid side bearing antisway means |
IT920358A (en) * | 1971-02-09 | |||
US3835787A (en) * | 1972-11-24 | 1974-09-17 | Gen Motors Corp | Railway truck positioning apparatus |
US3970009A (en) * | 1973-09-24 | 1976-07-20 | Houdaille Industries, Inc. | Fluid railroad passenger car suspension |
US3868910A (en) * | 1973-11-26 | 1975-03-04 | Houdaille Industries Inc | Railway car suspension motion control system |
SE381012B (en) * | 1974-04-08 | 1975-11-24 | Asea Ab | DEVICE ON SAVING BONDED VEHICLES FOR DETECTING A SAVING CURVE |
FR2459168A1 (en) * | 1979-06-21 | 1981-01-09 | Budd Co | INCLINATION CONTROL SYSTEM ASSOCIATED WITH THE BODY AND A BOGIE OF A RAILWAY VEHICLE |
-
1989
- 1989-07-13 SE SE8902526A patent/SE465667B/en not_active IP Right Cessation
-
1990
- 1990-03-22 SE SE9001041A patent/SE467155B/en not_active IP Right Cessation
- 1990-06-29 EP EP90910952A patent/EP0532493B1/en not_active Expired - Lifetime
- 1990-06-29 CA CA002064058A patent/CA2064058C/en not_active Expired - Fee Related
- 1990-06-29 DE DE69026838T patent/DE69026838T2/en not_active Expired - Fee Related
- 1990-06-29 WO PCT/SE1990/000469 patent/WO1991000816A1/en active IP Right Grant
- 1990-06-29 US US07/778,115 patent/US5295443A/en not_active Expired - Fee Related
- 1990-06-29 WO PCT/SE1990/000467 patent/WO1991000815A1/en active IP Right Grant
- 1990-06-29 AT AT90910952T patent/ATE137453T1/en not_active IP Right Cessation
- 1990-06-29 CA CA002064059A patent/CA2064059C/en not_active Expired - Fee Related
- 1990-06-29 ES ES90910952T patent/ES2089019T3/en not_active Expired - Lifetime
-
1992
- 1992-01-10 NO NO920138A patent/NO174288C/en unknown
- 1992-01-10 FI FI920120A patent/FI109672B/en active
- 1992-01-10 NO NO920139A patent/NO175852C/en unknown
- 1992-01-10 FI FI920119A patent/FI109673B/en active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2129716A1 (en) * | 1970-06-16 | 1971-12-23 | British Railways Board | Device for rail vehicles for lateral tilting of the car body of rail vehicles |
DE2135633A1 (en) * | 1971-07-16 | 1973-02-01 | Mak Maschinenbau Gmbh | STABILIZATION DEVICE TO PREVENT ROLLING MOVEMENT AND DAMPING NICKING MOVEMENT, IN PARTICULAR OF RAIL VEHICLES |
US3854420A (en) * | 1972-07-07 | 1974-12-17 | Schweizerische Lokomotiv | Cross-coupling for the trucks of a railroad vehicle |
US4069767A (en) * | 1972-11-08 | 1978-01-24 | Lucas Aerospace | Pneumatically controlled hydromechanical railway car stabilizing apparatus |
US3902691A (en) * | 1973-11-27 | 1975-09-02 | Owen J Ott | Automatic vehicle suspension system |
US4113111A (en) * | 1975-04-25 | 1978-09-12 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. | Load handling vehicle with hydraulic torsion transmitting devices |
US4324187A (en) * | 1978-09-04 | 1982-04-13 | Schweizerische Lokomotiv-Und Maschinenfabrik | Rail vehicle having a roll support device |
US4363277A (en) * | 1980-05-13 | 1982-12-14 | Dofasco Inc. | Stabilizing high speed railway truck safety device |
US4440093A (en) * | 1980-06-23 | 1984-04-03 | Hitachi, Ltd. | Vehicle tilt control apparatus |
US4665835A (en) * | 1984-03-01 | 1987-05-19 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Arrangement to increase roll stability of rail vehicles with air suspension |
US4715289A (en) * | 1985-05-31 | 1987-12-29 | Japan National Railway | Apparatus for controlling vibration of vehicle |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5787815A (en) * | 1994-05-25 | 1998-08-04 | Asea Brown Boveri Ab | Storage of track data in a position-controlled tilt system |
US5784969A (en) * | 1994-07-11 | 1998-07-28 | Siemens Aktiengesellschaft | Process and device for regulating the earth-related inclination of railroad vehicle boxes |
US5775230A (en) * | 1994-12-05 | 1998-07-07 | Fiat-Sig Schienenfahrzeuge Ag | Guidance system and process for controlling the lateral inclination on a rail vehicle |
US5558024A (en) * | 1995-04-07 | 1996-09-24 | Fiat Ferroviaria Spa | Body roll control system for a railway vehicle with variable trim body |
US5564342A (en) * | 1995-04-07 | 1996-10-15 | Fiat Ferroviaria Spa | Railway vehicle with variable trim body |
ES2119644A1 (en) * | 1995-07-05 | 1998-10-01 | Const Y Aux Ferrocarriles Sa | Tilting system for railway vehicle |
US5636576A (en) * | 1995-11-07 | 1997-06-10 | Construcciones Y Auxiliar De Ferrocarriles, S.A. | Tilting system for railway rolling stock |
US6278914B1 (en) | 1999-08-26 | 2001-08-21 | Bombardier Inc. | Adaptive signal conditioning device for train tilting control systems |
US6397129B1 (en) | 1999-11-01 | 2002-05-28 | Bombardier Inc. | Comfort monitoring system and method for tilting trains |
US20030075071A1 (en) * | 2001-10-23 | 2003-04-24 | Alstom | Safe rail vehicle tilt control method |
US6786159B2 (en) * | 2001-10-23 | 2004-09-07 | Alstom | Safe rail vehicle tilt control method |
Also Published As
Publication number | Publication date |
---|---|
FI920119A0 (en) | 1992-01-10 |
NO174288B (en) | 1994-01-03 |
SE9001041L (en) | 1991-01-14 |
SE9001041D0 (en) | 1990-03-22 |
CA2064059A1 (en) | 1991-01-14 |
FI109673B (en) | 2002-09-30 |
DE69026838T2 (en) | 1996-11-28 |
NO920138L (en) | 1992-01-10 |
NO175852C (en) | 1994-12-21 |
EP0532493B1 (en) | 1996-05-01 |
SE467155B (en) | 1992-06-01 |
FI109672B (en) | 2002-09-30 |
DE69026838D1 (en) | 1996-06-05 |
ES2089019T3 (en) | 1996-10-01 |
NO920138D0 (en) | 1992-01-10 |
NO174288C (en) | 1994-04-13 |
FI920120A0 (en) | 1992-01-10 |
WO1991000815A1 (en) | 1991-01-24 |
EP0532493A1 (en) | 1993-03-24 |
ATE137453T1 (en) | 1996-05-15 |
NO175852B (en) | 1994-09-12 |
SE8902526L (en) | 1991-01-14 |
SE465667B (en) | 1991-10-14 |
WO1991000816A1 (en) | 1991-01-24 |
CA2064058C (en) | 1997-05-27 |
CA2064059C (en) | 1997-10-14 |
CA2064058A1 (en) | 1991-01-14 |
SE8902526D0 (en) | 1989-07-13 |
NO920139L (en) | 1992-01-10 |
NO920139D0 (en) | 1992-01-10 |
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Owner name: ASEA BROWN BOVERI AB Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:BANGTSSON, HANS;NILSTAM, NILS G.;PERSSON, RICKARD;REEL/FRAME:006074/0196 Effective date: 19910310 |
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